Filter.



PatentedV Mar. I3, |900. C. I. SIMPSON.

FILTER (Application led Nov. 13, 1899.)

(Nol Model.)

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Wifnessas K Lgegfar @my 77, 5 ryqfomjzays,

.for connection with a house-spigot.

UNTTED VSTATES PATENT JEEICE..

CHARLES I. SIMPSON, OF NAMPA, IDAIIO.

FILTER.

SPECIFICATION forming part of Letters Patent No. 645,238, dated March 13, 1900. Application filed November 13, 1899. Serial No, 736,825. (No model.)

To a/ZZ whom, it may concern: Y

Be it known that I, CHARLES I. SIMPSON, a citizen of the United States, residing at Nampa, in the county of Canyon and State of Idaho, have invented a new and useful Filter, of which the following is a specification.

This invention relates to filters in general, and more particularly to that class known as portable filters and which are adapted for attachment to a water-supply and comprise a porous body within a casing and through which the water is forced by the pressure of the main.

The object of this invention is to provide a construction wholly of non-corrosive material in which leakage will be effectively pre- .vented and, furthermore, in which ready access of the water to the exterior of the filtering-body may be had.

In the drawings forming a portion of this specification, and in which like reference-nu merals indicate corresponding parts in the several views, Figure 1 is an elevation of a filter embodying this invention. Fig. 2 is a vertical central section of the filter with the parts assembled. Fig. 3 is a perspective view' of the cap employed upon the porous body.

Referring now to the drawings, the filter consists of a casing 5which is formed of glass, porcelain, or other similar material and which is cylindrical in general shape and has a hemispherical upper end 6, through which is formed a perforation 7, adaptedA for connec` tion with a supply-pipe S, which may be a water-main or which mayin turn be adapted The lower open end 9 of the casing is provided with threads 10, with which are adapted to engage the threads 11 upon the inner periphery of an adjustable cap 12, of porcelain or other material. This cap consists of adisk having an annular flange upon one face and which fiange carries the threads 11. Centrally of the cap 12 is formed a screw-threaded perforation 13, with which is connected an outlet 14., through which the ltered water runs.

Within the casing 5 is placed a similarlyshaped porous filtering-body 15, the hemispherical upper end 16 of which enters the Asimilar end of the casing and upon .which is disposed a glass or porcelain cap 17, having a plurality of radiating protuberances 1S,

which engage the inner surface of the hemispherical end 6 of the casiu g and hold the cap and the upper end of the porous body spaced from the upper end of the casing to form an interspace 19,which extends down and around the porous body, said body having a slightlylesser diameter than that of the interior of the casing. The body 15 has a central bore 20, which extends from a point adjacent the upper end thereof through the lower end and adapted to register with the opening 13 and tube 14, and thus to form a continuation thereof.

When the parts are assembled, the cap 17 is disposed upon the porous filtering-body, which is then entered in the casing. A washer 21 is then placed in the cap 12, and the cap is screwed onto the casing, thus clamping the washer firmly between the cap and the lower end of the casing and between the cap and the lower end of the porous body, said porous bodyhaving such a length that its lower end will lie flush with the lower end of the casing and the washer having a central opening to register with the opening vin the cap. It will thus be seen that the porous body will be held spaced from the inner surface of the casing to permit access of water thereto, the water from the pipe 8 striking upon the cap 17 and being deflected downwardly of the casing, and that the water will pass through the ltering-body and outwardly of the tube 14; also,vthere being no parts to crrode the elements of the construction may be easily assembled and disassembled for cleaning and repair, thus prolonging the life of the filter.-

ing the end of the casing, a cap in threaded IOO my own I beve hereto axed mysignature `in thepresenee of two Witnesses.

CHARLES I. SIMPSON.

engagement with the easing and adapted to impinge the filtering-body and clamp it with its cap against the end of the casing, and an outlet-pipeengaged with the cap of the casi 5 ing and communicating with the interior of the ltering-body.

In testimony that I claim the foregoing as I/Vi tnesses I. C. .IOYNER, JESSE J WALLING. 

